- Clarks Island
- Current Island
- Central
- Chain Island
- China Hill
- Cinder Island
- Cormorant Island
- Crane Island
- Coeur d'Alene
- Conant
- Connor
- Cotterel
- Cardiff
- Cardiff Mill
- Cavendish
- Cayuse Junction
- Cooper
- Cow Creek
- Cully Moores
- Casto
- Custer
- Cottonwood
- Council
- Castle Rocks
- Chalk Cut
- Cleft
- Craigmont
- Cherryville
- Coulam
- Crouch